Aniakchak Caldera is six miles across and 3,000 feet deep. The area originally was a 7,000 foot mountain. The caldera was created by a volcanic eruption approximately 3,500 years ago, which caused the mountain to collapse.
![]() Smoky morning |
![]() Riverside |
![]() Salmon fishing |
![]() River cabin |
![]() Brown bear |
![]() Caldera |
Home | Aniakchak National Monument |